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K. Hornberger
Monitoring approach to open quantum dynamics using scattering theory
EPL 77, 50007 (2007)


It is shown how S-matrix theory and the concept of continuous quantum measurements can be combined to yield Markovian master equations which describe the environmental interaction non-perturbatively. The method is then applied to obtain the master equation for the effects of a gas on the internal dynamics of an immobile complex quantum system, such as a trapped molecule, in terms of the exact multi-channel scattering amplitudes.

(5 pages)   [pdf, journal]           (c) EPLA 2007